Finding the Fourth Proportional to 139,686.32, 192,766.56 and 76,024.10

Step by Step Solution

1. Step 1: Write the proportion equation
   139,686.32 : 192,766.56 = 76,024.10 : x
2. Step 2: Convert to fraction form
   139,686.32/192,766.56 = 76,024.10/x
3. Step 3: Cross multiply
   139,686.32x = 192,766.56 × 76,024.10
4. Step 4: Simplify right side
   139,686.32x = 14,654,904,234.10
5. Step 5: Solve for x
   x = 14,654,904,234.10/139,686.32
6. Step 6: Final answer
   x = 104,912.95